Shutshimi is a “Cute ‘Em Up” starring The Fishy who is defending its home waters against an army of squids, pelicans, reverse-mermen, bears, and more. Each level of the shooter lasts around ten seconds and then you have ten seconds more to choose from three random power ups before moving on to the next level.
The game has been updated for PlayStation and now includes 2-4 player local co-op, new power-ups, new and updated sprites and backgrounds, additional songs, new enemies and online leaderboards.
Source: EU Blog